BIL - SJU

$599 Find Cheap Flights from Billings to San Juan

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Billings to Luis Munoz Marin Intl departing on 4/29. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billings to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Billings to San Juan, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$599
American Airlines
Wed 4/29Sat 5/9
BIL - SJU • 1 stop
Top airlines
Cheapest • from $599 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Billings and Luis Munoz Marin Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $613 (round-trip)
Shortest trip • 8h 36m (one-way)
Insights
Insights
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Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Luis Munoz Marin Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Billings to Luis Munoz Marin Intl (BIL-SJU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Billings to Luis Munoz Marin Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Billings to Luis Munoz Marin Intl

Wed, Apr 29 - Sat, May 9
American Airlines Logo
6:00 am - 11:02 pm
BIL
-
SJU
15h 02m
1 stop
American Airlines Logo
6:45 am - 10:43 pm
SJU
-
BIL
17h 58m
1 stop
$599American Airlines
Tue, Apr 28 - Sun, May 10
American Airlines Logo
1:51 pm - 9:13 am
BIL
-
SJU
17h 22m
2 stops
American Airlines Logo
5:45 am - 10:43 pm
SJU
-
BIL
18h 58m
2 stops
$642American Airlines
Wed, Apr 29 - Sat, May 9
American Airlines Logo
6:00 am - 11:02 pm
BIL
-
SJU
15h 02m
1 stop
American Airlines Logo
11:59 pm - 1:21 pm
SJU
-
BIL
15h 22m
1 stop
$647American Airlines
Tue, Apr 28 - Sun, May 10
American Airlines Logo
6:00 am - 11:02 pm
BIL
-
SJU
15h 02m
1 stop
American Airlines Logo
6:45 am - 10:43 pm
SJU
-
BIL
17h 58m
1 stop
$671American Airlines
Wed, Apr 29 - Sat, May 9
American Airlines Logo
1:51 pm - 4:32 am
BIL
-
SJU
12h 41m
1 stop
American Airlines Logo
11:59 pm - 1:21 pm
SJU
-
BIL
15h 22m
1 stop
$675American Airlines
Fri, May 29 - Sun, May 31
American Airlines Logo
12:42 pm - 11:59 pm
BIL
-
SJU
9h 17m
1 stop
American Airlines Logo
12:59 am - 12:12 pm
SJU
-
BIL
13h 13m
1 stop
$699American Airlines
Tue, Apr 28 - Sun, May 10
American Airlines Logo
1:51 pm - 10:53 am
BIL
-
SJU
19h 02m
2 stops
American Airlines Logo
5:45 am - 10:43 pm
SJU
-
BIL
18h 58m
2 stops
$711American Airlines
Sat, May 30 - Tue, Jun 2
United Airlines Logo
2:25 pm - 5:29 am
BIL
-
SJU
13h 04m
2 stops
United Airlines Logo
1:00 am - 1:22 pm
SJU
-
BIL
14h 22m
2 stops
$731United Airlines
Sat, May 30 - Tue, Jun 2
American Airlines Logo
1:23 pm - 11:03 am
BIL
-
SJU
19h 40m
2 stops
American Airlines Logo
12:59 am - 12:12 pm
SJU
-
BIL
13h 13m
1 stop
$736American Airlines
Sat, May 30 - Wed, Jun 3
Delta Logo
6:30 am - 11:35 pm
BIL
-
SJU
15h 05m
2 stops
Delta Logo
2:35 pm - 11:14 pm
SJU
-
BIL
10h 39m
2 stops
$751Delta
Booking Insights

KAYAK's insights & trends for Billings to Luis Munoz Marin Intl flights

Get data-powered insights and trends into flights from Billings to Luis Munoz Marin Intl to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Billings to San Juan?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Billings to San Juan were found on American Airlines ($599) and Delta ($751).

Good to know

Cheapest flight$599
Flight from Billings to San Juan

When to book flights from Billings to Luis Munoz Marin Intl

Are your dates flexible? Find out the best times to travel from Billings to Luis Munoz Marin Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Billings to San Juan flights

  • What is the cheapest flight from Billings to San Juan Luis Munoz Marin Intl Airport?

    In the last 3 days, the lowest price for a flight from Billings to San Juan Luis Munoz Marin Intl Airport was $599 for a round-trip ticket.

  • Do I need a passport to fly between Billings and San Juan?

    A passport is required to fly from Billings to San Juan.

  • Which aircraft models fly most regularly from Billings to San Juan?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Billings to San Juan?

    Star Alliance is the only airline alliance operating flights between Billings and San Juan.

  • How does KAYAK find such low prices on flights from Billings to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Billings to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Billings to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Billings is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Billings to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Billings with another airline. Booking your flights between Billings and SJU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Billings to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Billings up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Billings to Luis Munoz Marin Intl

 
See real verified KAYAK customer reviews for airlines flying from Billings to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Billings to Luis Munoz Marin Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9529 reviews
6.6Food
7.7Boarding
8.1Crew
7.1Entertainment
7.3Comfort
Airline reviews

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

2.0 MediocreDr. Joseph, Apr 2026
ATL - ORD
Read more United Airlines reviews

Just a bad day to fly. Flight was delayed from scheduled 6:50 pm departure to 8:50 pm. Combination of factors mostly related to weather at the destination airport (which is where the incoming flight originated) which delayed the inbound flight over an hour. Once on board, we taxied but had to hold again on the taxiway for 10 minutes or so. We did not get wheels up until after 9 pm. The flight was smooth but about 18 minutes from our destination, we had to hold for several minutes more due to weather at ORD. We finally landed at ORD about 11:08 pm (accounting for the time difference, that was about a 3 hour delay from our scheduled departure time). It felt like we were never going to get to our destination. But the flight crew and attendants were very good. The movie selection onboard was also very nice. Got to watch half of a movie just during our taxi from the gate at ATL due to the delay!

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

The business class seat is exceptional. I wish the food is more palatable.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

the entire flight felt off. The crew seemed uninterested and disengaged. The food service was really bad - overcooked, bland, weird food service. They actually woke us up to serve chicken wraps in the middle of the night, after dinner and before breakfast. Made no sense. Ultimately, I was glad they did though, because the breakfast had been held for so long it was inedible. Eggs, potatoes, sausage - all disgusting. We were asked to "honor" the lavatories for premium customers and stay in our own cabin: this was also strange. So people in economy didn't pay enough to use the closest toilet to them??? It's a toilet. All in all, not the experience I have come to expect from United Airlines. The return flight from Paris to SFO was better, btw.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Everything you need to know for your flight from Billings to Luis Munoz Marin Intl

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